A portfolio is a collection of work or documents that showcase a person's skills, achievements, and experiences. It is commonly used by artists, designers, and professionals to present their best work to potential employers or clients. A portfolio can include various items such as photographs, drawings, writing samples, or project summaries, depending on the individual's field. In addition to creative fields, a portfolio can also refer to a financial collection of investments, such as stocks, bonds, and mutual funds. Investors use their financial portfolios to track performance and make informed decisions about buying or selling assets, aiming to achieve their financial goals.